Is there any action been taken after lodging a complaint, here i am again something.

I am lodging this complaint again with the very same content following the previous two complaints relating to the same matter, the first complaint was lodged on the 26 June 2020 and the second on the 26 January 2021, which then I believed were successfully resolved, little did I know I will be wasting my precious time to compliant again which is something I don't enjoy. Here is my complaint I change the deduction date from the 25 to the 1st of every month but for the past two months they decided to deduct on the 25, which is not our agreement, today i received a call to tell me about the unreturned debit, my personal credit records has been tarnished and I have two RD on my profile including charges because of one negligence. The response to the first two complaints was that it was a system error this time I don't know.